Home / 1,179,043.70-1,768,565.55-431,381.30

Finding the Fourth Proportional to 1,179,043.70, 1,768,565.55 and 431,381.30

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Solution

The fourth proportional to 1,179,043.70, 1,768,565.55 and 431,381.30 is: 647,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,043.70 : 1,768,565.55 = 431,381.30 : x
  2. Step 2: Convert to fraction form
    1,179,043.70/1,768,565.55 = 431,381.30/x
  3. Step 3: Cross multiply
    1,179,043.70x = 1,768,565.55 × 431,381.30
  4. Step 4: Simplify right side
    1,179,043.70x = 762,926,106,094.22
  5. Step 5: Solve for x
    x = 762,926,106,094.22/1,179,043.70
  6. Step 6: Final answer
    x = 647,071.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.